Note 4. Commitments and Contingent Liabilities - Product Warranties (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Product Warranty Liability at the beginning of the year	$ 2,109	$ 1,818	$ 2,176
Additions to warranty accrual (including changes in estimates)	1,019	1,060	59
Settlements made (in cash or in kind)	(877)	(769)	(417)
Product Warranty Liability at the end of the year	$ 2,251	$ 2,109	$ 1,818